This is really nice!

In my nonexistent free time, I'm very slowly learning Lisp. (well, mostly emacs lisp) I love seeing these sorts of Emacs projects, because I can read through the source and figure out a little bit more about this strange and wonderful language.

This brings to mind one of the reasons I love Emacs so much now. It's the editor with the smallest barrier to learning and extending it, since everything is Lisp, you configure it with Lisp, you customize it with Lisp, and packages are written in Lisp.

Anyway, a long-winded roundabout way of saying: Thank you for sharing this!